Could we be witnesses to the greatest hitting season ever?
Miguel Cabrera, a notoriously slow starter who usually heats up later in the season
Stay tuned. 
This is not true. Cabrera's career splits:
1st half: .320/.396/.564 1 HR every 20.2 PA
2nd half: .320/.398/.565 1 HR every 19.5 PA
For his career, he has hit between 53 and 59 HR's every month of the season.
And how's this for eerie?
Cabrera at home: 200 2B, 7 3B, 170 HR
Cabrera on road: 201 2B, 7 3B, 169 HR
He's pretty much just awesome at hitting all the time.
As for the greatest ever? No. Gehrig ('34 and '36) and Ruth (Every year from 1920 to 1932 except '22 and '25) would be higher on my list, as would Ted Williams' 1941 and Musial's 1948. But in the last 50 years? You might be onto something—provided we take out A-Rod's/Bonds' peak seasons